heartbroken parents of oscar pistorius, now breaking their silence. Defending him against the allegations that he murdered his girlfriend. It comes as a reality show with his slain girlfriend still in it. Reporter: The pistorius family coming forward today to defend their world-famous son, sharing for the first time the olympian's anguish. Oscar, as you can imagine, is also numb with shock and grief. And total pain. Reporter: That pain, visible when oscar pistorius wep court yesterday, now facing murder charges and 25 years in prison. Police say the double amputee, known as the blade runner, shot his cover model girlfriend, reeva steenkamp, in the early hours of valentine's day. His house remains an active crime scene as investigators try to piece together what happened that night. They say neighbors heard arguing at the home just hours before the shooting. A major south african newspaper, reports today, the first neighbor and security guards to arrive at the scene saw pistorius trying to revive steenkamp using cpr after she was shot with a 9 millimeter pistol four times through a bathroom door.Pistorius' friends believe that he mistook her for an intruder. At a local sports bar pistorius frequented, his fans had few words. Personally I'm shocked. Reporter: On south african national tv tonight, they watched the launch of a reality show, featuring steenkamp, and a tribute to the life of a law

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